/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.flink.api.table.expressions.analysis

import org.apache.flink.api.common.typeinfo.TypeInformation
import org.apache.flink.api.table.expressions.Expression
import org.apache.flink.api.table.trees.Analyzer

/**
 * This analyzes selection expressions.
 */
class SelectionAnalyzer(inputFields: Seq[(String, TypeInformation[_])])
  extends Analyzer[Expression] {

  def rules = Seq(
    new ResolveFieldReferences(inputFields),
    new VerifyNoNestedAggregates,
    new InsertAutoCasts,
    new TypeCheck)

}
